Trust me, it doesn’t get any better when you switch disciplines, especially as you get older.
My young Paint is an all-around type, and I wanted to focus on trail classes. To do well, your horse has to master lateral movements, a steady rhythm and precise transitions. I liked those goals. But let me tell you, the first few times I competed at a big Paint show in trail I was… 
Huge, covered arena, with a bazillion striped ground poles laid out in all sorts of numerous, jigsaw puzzle configurations. I mean, poles for miles! Endless opportunities to get lost, go off course, or jog over poles you were supposed to take at a lope.
Ultimately, the only thing that probably kept me from having a meltdown were all those years of trotting and cantering ground poles and cavaletti on greenies and in lessons. It finally paid off, albeit in a western saddle!